CO₂ emissions of an asphalt pavement in kg of CO₂ per m2

Climate change is one of the world's major problems and concerns the entire human population as its effects are global in scope. Climate change is driven by the greenhouse effect, which is generated by greenhouse gases (GHG). The construction industry is important in the development of a country, both economically and culturally, since it is through it that the infrastructure needs required for a nation's economic and social activities are met. Urban environments are composed of various structures that favor economic, social and any other activities of interest within the existing population; such urban environment is mainly connected by a system that is constituted by asphalt pavements of flexible or rigid type. This project analyzes the environmental impacts generated during the construction process of an asphalt pavement corresponding to the Real de Sevilla III subdivision, located in Obregon City, Sonora, Mexico, applying the Simapro 9.0 Software, obtaining a result of 12.618 Kg CO2 eq/m2 and 1,140, 863.493 Kg-CO2/fractionation generated by its main materials and activities and equipment consumptions.

Inductor Disc CFD Analysis for VAWT

This work shows the computational simulation of the fluid dynamics of inductor discs (patent pending reception number MX/E/2021/002395) applied to vertical axis wind turbines (VAWT). These inductor discs have a unique and innovative design that can be classified as wind concentrators. The purpose of these devices is to increase wind velocity at the wind turbine entrance; this increase in velocity exponentially boosts the mechanical power of the turbine, according to Betz's theory, increasing the electrical energy production of the turbine and, at the same time, reducing its dimensions. The objective of this investigation is to carry out the fluid dynamic simulation (CFD) of two of the inductor disc geometries: an elliptical one and a truncated conical one, varying the entrance wind velocities of the VAWT from 3 m/s to 12 m/s. The proposed methodology consists of employing a CFD software (ANSYS) to model the two inductor disc geometries and extract them from a static control volume. Mesh this volume, establish boundary conditions, and vary wind velocities to carry out the fluid dynamic analysis. Finally, the obtained velocities are compared at different representative points of both geometries.

Design and Construction of an ALD Reactor by Growth of Al2O3 Nanostructure Films

Objective: This project focuses on designing, building and commissioning work the atomic layer deposition (ALD) reactor for Al2O3 ultrathin film, which it will be contain specific components and a system's own control unit. Methodology: The ALD reactor was designed under a system to minimize components, flow lines and connections; to reduce manufacturing costs, volume of precursors, among others. Currently, ALD reactors are expensive to sell, maintain and replace parts. The design and manufacture of the ALD reactor manufactured at the University of Sonora (UNISON) is based on the state art with sequential binary reactions of the precursors, for the proposal for the manufacture of solar cells. Contribution: It was possible to build and commission the ALD reactor for the deposition of ultra-thin films, with the characteristics of being reproducible and scalable, which makes it attractive for commercialization. The homemade ALD reactor at UNISON is considered a very interesting equipment for the semiconductor research area, since it is possible to combine different types of materials in the form of films such as oxides and nitrides in the order of Angstroms (Ǻ).

Interactive assistant tool for the evaluation of kinematic patterns and EMG signals in patients with a forearm injury

Subjective feelings feedbacks are commonly employed by a patient during forearm rehabilitation therapy without real-time data, leading to suboptimal recovery results in some patients. Technological innovations in the field of assisted rehabilitation have enabled the evolution of real-time monitoring systems. In this paper, interactive assistant development is presented as the interface to define the relationship between the kinematics patterns and the electromyographic signals during the forearm rehabilitation routine. Leap Motion (LM) and Shimmer3 EMG sensors read the routine behavior by following the movements that appear on the software. Real-time targets are programmed to lead the necessary forearm movements that the therapist sets to determine the recovery progress. The integration of software and hardware shows a dataset basis on interaction variables such as arm velocity, arm position, performance rate, and electrical muscle pulse. The results obtained from tests show that the system works effectively within a range of movement of 9 to 88 degrees in rotation about the axes, and velocities under 190 mm/s show stable movement representation on software. Finally, the outcomes ranges show an alternative tool to evaluate patients with a forearm injury.

Graphical user interface for the patterns detection in wine crops

Considering that our country has an important participation in the grape productive sector for this reason it is one of the crops with the best opportunity areas for the implementation of this technology type. In this paper the design and development of a Graphical User Interface (GUI) generated in the MATLAB programming environment is exposed, through which the pictures acquisition and process from interest information is carried out to implement patter recognition strategies in the wine crops agroindustrial sector to monitor and generate a timely diagnostic of its currently status. The GUI has a section than allows the pictures acquisition in real time to later capture the information to be processed and through the application of filters and color recognition techniques on the crop leaf (study object) it’s processed to establish a diagnostic, which will allow the user to apply the appropriate measures contributing in the best way to a crop optimal development.

Drag and lift force analysis for the cybertruck Tesla vehicle

In this research, aerodynamic tests were carried out at different speeds by using Solidworks Flow Simulation software in the Tesla Cybertruck vehicle, knowing the results of the drag and lift coefficients. The method was selected in three dimensions, the continuity equations and the Navier-Stokes equations that were solved by the finite volume method, the k-ɛ model was chosen to close the amounts of turbulence.

Mathematical modeling of a MOSFET transistor as modulator in AM transmission

The necessary methodology is presented to characterize the alternating signal transistor in the time and frequency domain and obtain its characteristic equations including its transfer function. The behavior of the transistor gate is studied in different models of manufacturers in alternating signal, therefore the difference between the behavior relationship between the theory and the information obtained in the experimentation is shown. All of the above to have an optimization, control or description of the operation of a real transistor and be used in an electrical / electronic application in general, in this case, for an AM modulation.

Direct design process of aerodynamic profiles using the Joukowsky transformation

This document shows the results of a part of the direct design process of airfoils. The research and design of these geometric shapes are of great relevance for their application in aerodynamic devices, since, if a wing profile with a great aerodynamic fineness is developed, the efficiency of the devices that have this geometric shape will be improved on its wings, propellers, etc. This project started from two analytical processes, the first was to obtain the shape of the wing profiles through the Joukowsky transformation, later the pressure distribution of each aerodynamic profile was obtained through the methodology developed by Theodorsen, the profiles that achieved optimal results were subjected to the third and last analysis in the Qblade software, this software allows to find the angle of attack that produces the maximum aerodynamic fineness, in addition to an approximation to the lift and drag coefficients, in this way several curved and aerodynamic profiles were obtained. Various thicknesses whose aerodynamic fines range between 100 and 250 at the optimum angle of attack.

Desarrollo de un sistema inalámbrico escalable de medición de humedad del suelo en un cultivo de vid

We present a wireless system applied to precision agriculture, made up of sensor nodes that measure soil moisture at different depths, applied to vine crops where drip irrigation is applied. The intention is to prepare a system for scaling, and to create a Wireless Sensor Network (WSN) that communicates by radio frequency with a base station (ET), so that the gathered data is stored locally and can be sent out an Internet gateway.

Prototipo para el análisis del crecimiento vehicular y de estaciones de monitoreo atmosférico

There is a universal recognition of the importance and need to establish more ambitious and effective climate actions in all the sectors involved; government, private sector and society with the aim of acting together to decrease and stop the increase in global temperature in the present century and thereby avoid devastating and irremediable effects on climate change. In this sense, the implementation of atmospheric monitoring systems has made it possible to identify the emissions of particulate and polluting gases directly related to gasoline and diesel engine vehicles; therefore, the objective of this project is to design a prototype system for mobile devices with the Android operating system, which allows projecting the increase or decrease of polluting gases using statistical data on vehicle growth and atmospheric monitoring stations in the State of Jalisco, Mexico, therefore it constitutes a valuable technological tool whose main contribution focuses on keeping the population informed about the importance of the reduction of contaminants that can deteriorate health.